9.01 – HDW define the relationships between two variables on a graph
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9.01 – HDW define the relationships between two variables on a graph
Do Now:Graph the following points: (4, 5)(-2, 3)(-3, -4)(3, -6)
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Exam Missed
Who still needs to take it
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Monday Tuesday Wednesday Thursday Friday
4
Review #8
5
Exam #8
6
Graphing Stories
7
Stacking Cups
8
Graphing Lines
11
Solve for Y and graph
Concept Quiz
12
HDW determine if a point is on a
line
13
HDW graph lines parallel to the x & Y axes
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HDW determine the slope of a
line algebraically
15
NO SCHOOL PD Day
18
HDW write the equation of a line given two
points
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HDW graph and write the
equations of parallel lines
Concept Quiz
20
Review #9
21
Exam #9
22
Functions
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Goals of today
• Graph points
• Coordinate plane
• How do graphs tell a story
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Drawing the C.P.a) Use a Rulerb) Label Axisc) Set scaled) Label Points
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Points in the coordinate plane are indicated with ordered pairs (x,y)
Examples:
(4, 5)
(-2, 3)
(-3, -4)
(3, -6)
(0, 0)
Think: (↔, ↕)
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The coordinate plane
Points in the coordinate plane are indicated with ordered pairs (x,y)
Examples:
(4, 5)
(-2, 3)
(-3, -4)
(3, -6)
(4,5)
(-2,3)
(-3, -4)
(3, -6)
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The Four Quadrants
I
x
y
II
III IV
(+,+)(-,+)
(-,-) (+,-)
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Graphing Stories
• Stairs One• Stairs two• Running• Distance from Home
Will probably just do two of them
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Now let’s just talk not write
• Tell the story of each graph
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Now Tell the Story
Scan here
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Describe the Relationship between x and y.
Scan here
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Describe the Relationship between x and y.
Scan here
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Describe the Relationship between x and y.
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Summary
• Positive Change(“increasing”)
• Negative change (“decreasing”)
• Zero Change
• Undefined Change
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Oh Canada…
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8. Homework – Bonus
Practice
Challenge
Where is the Earth’s x-axis? Where is the Earth’s y-axis?
Where is our school’s coordinate?
Where is the Earth’s x-axis? Where is the Earth’s y-axis?
Where is our school’s coordinate?
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